Replacement sleeve LOS ANGELES SLEEVE, reference YA5016, designed for Yamaha YZ490 models from 1987 to 1990. A part dedicated to the cross world, this sleeve is aimed at riders and mechanics looking for a reliable restoration of the cylinder block for engines equipped with the 2HJ type cylinder.
- Designation: Sleeve for YZ490 1987-90
- Brand: LOS ANGELES SLEEVE
- Manufacturer reference: YA5016
- Compatibility: YAMAHA YZ 490 (1987 and 1988) – 490 cm³
- Cylinder type: for 2HJ type cylinder
This sleeve installs as a replacement for the worn part, allowing for the correct fit between the cylinder and piston. Ideal for engine restoration operations after wear or during reassembly after machining, it integrates with the original chassis and configurations of the relevant YZ490 models. To ensure a durable result, follow the recommended alignment, boring, and break-in procedures, and have the assembly checked by an experienced mechanic if necessary.
Before placing an order, check the reference of your machine's cylinder (type 2HJ) and the correspondence with your year/model for a safe and precise fit.
